Math, asked by aronchauhan2000, 2 months ago

Show that (9x-5y)
²+ 180 xy = ( 9x + 5y)
²

Answers

Answered by mukunth1975

2

Answer:

(9x -5y)² + 180 xy = (9x + 5y)²

because (a-b)² = a² + b² - 2ab

so (9x)² + (5y)² - 2*9x*5y = (9x)² +(5y)² + 2*9x*5y

=. 81x² + 25y² - 90xy = 81x² + 25y² + 90xy

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